She also remained vague about her due date – some have said she is over 5 months along.

Carla, who recently appeared in Woody Allen's latest movie, "Midnight in Paris," with Owen Wilson and Rachel McAdams, said she is also hard at work on a new album. She was previously was featured on the soundtrack to "(500) Days of Summer."

The French President has three sons from his two previous marriages and last year became a grandfather. Carla also has a 10-year-old son, Aurelian, from a previous relationship.